lkml.org 
[lkml]   [2010]   [Jun]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5/6] usb/gadget: Do not take BKL for gadget->ops->ioctl
Date
There is no gadget driver in the tree that
actually implements the ioctl operation, so
obviously it is not necessary to hold the
BKL around the call.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/usb/gadget/f_fs.c | 2 --
drivers/usb/gadget/inode.c | 6 ++----
2 files changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index d69eccf..715da23 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -714,9 +714,7 @@ static long ffs_ep0_ioctl(struct file *file, unsigned code, unsigned long value)
struct ffs_function *func = ffs->func;
ret = func ? ffs_func_revmap_intf(func, value) : -ENODEV;
} else if (gadget->ops->ioctl) {
- lock_kernel();
ret = gadget->ops->ioctl(gadget, code, value);
- unlock_kernel();
} else {
ret = -ENOTTY;
}
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index de8a838..5308392 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1299,11 +1299,9 @@ static long dev_ioctl (struct file *fd, unsigned code, unsigned long value)
struct usb_gadget *gadget = dev->gadget;
long ret = -ENOTTY;

- if (gadget->ops->ioctl) {
- lock_kernel();
+ if (gadget->ops->ioctl)
ret = gadget->ops->ioctl (gadget, code, value);
- unlock_kernel();
- }
+
return ret;
}

--
1.7.0.4


\
 
 \ /
  Last update: 2010-06-01 23:09    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site